WIP GPU scheduler + delayed activation / tile draw

gpu/ipc/common/gpu_stream_constants.cc

Index: gpu/ipc/common/gpu_stream_constants.cc
diff --git a/gpu/ipc/common/gpu_stream_constants.cc b/gpu/ipc/common/gpu_stream_constants.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9fcf8317086d414413aeb1d3f2900087ddb88178
--- /dev/null
+++ b/gpu/ipc/common/gpu_stream_constants.cc
@@ -0,0 +1,26 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "gpu/ipc/common/gpu_stream_constants.h"
+
+#include "base/logging.h"
+
+namespace gpu {
+
+const char* GpuStreamPriorityToString(GpuStreamPriority priority) {
+  switch (priority) {
+    case GpuStreamPriority::REAL_TIME:
+      return "REAL_TIME";
+    case GpuStreamPriority::HIGH:
+      return "HIGH";
+    case GpuStreamPriority::NORMAL:
+      return "NORMAL";
+    case GpuStreamPriority::LOW:
+      return "LOW";
+  }
+  NOTREACHED();
+  return "";
+}
+
+}  // namespace gpu